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  <title>容器标签和链接标签</title>
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  <div>独占一行</div>
  <div>独占一行</div>

  <span>单行排列</span>
  <span>单行排列<br></span>

  <a href="#">超链接</a>
  <a href="https://itheima.com">黑马官网</a>
  <a href="https://itheima.com" target="_blank">新开一个黑马官网</a>
  <a href="mailto:2044678501@qq.com">发送邮件</a>
  <a href="tel:10010">拨打电话</a>
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